Fandom: Transformers Bayverse (POV'verse)
Author: prophetbot, gatekat on LJ
Pairing: Sunstreaker/Sideswipe/Shimmerfire
Rating: NC-17 for mech/mech/femme
Codes: Sticky, Het, Slash, Twincest, Sparklings
Summary: With some wind under her wings and a much-improved mood, Shimmerfire shares an ill-kept secret with Sunstreaker and Sideswipe.
Notes: Written in the Dathanna de Gray fanverse (community .livejournal .com/ tf_socket_fics)

Sunny Side Up 7: Carrying Seekers are Still Seekers


Sideswipe and Sunstreaker fidgeted as they watched Shimmerfire dart and swoop about the sky at full speed, pulling G's that made their sparks pound at the thought of the young lives, their sparklings, facing such forces at such a young age. Despite that, neither could deny that she was in desperate need to stretch her wings and neither she nor Tread Bolt, who was shadowing her every move from a polite but protective distance, would intentionally do anything that might harm them.

~Sideswipe,~ Sunstreaker muttered through their bond with a tense nervousness, resisting the near intense urge to grab at his brother's arm every time she dove. His optics were playing illusions on him, showing him six other Seekers, small and not nearly as graceful, maybe even slipping and ramming themselves into one of the human structures. ~Primus.~

~Hopefully she'll teach them to fly where that can't happen,~ Sideswipe gripped his brother's arm as she went into an insanely tight death spiral, the kind of move that would send the Twins leaping off for their life, only to pull out and rush over them at just under mach one.

Sunstreaker couldn't shift his optics from her flying form. It was frightening - with the thoughts of the Seekerlings going to be doing some of the same techniques she was performing - but alluring. ~But what if ours are clumsy? Or unobservant? Or, what if one has a glitch while flying and crashes?~ His engine revved, an irregular sound that made him sound as if he were in some sort of distress.

~We're going to have to trust her, and Pit take him, Tread Bolt, and the Aerials to keep them safe and train them how to fly well,~ Sideswipe slid behind his brother and wrapped his arms around the golden mech. ~When was the last Seeker you know of that was anything but perfection in the sky?~

The golden twin grunted in response, shifting his optics slightly to glance over his shoulder at his brother. ~And what are you going to be teaching the Seekerlings, brother? How to perfect the art of the prankster?~ He was happy to change the subject and get those odd images out of his processor.

~How to kill on the ground,~ he rumbled with pride. ~How to fight and kill Seekers in a way they'll never expect from another Seeker. If they have arm-blades, how to use them. How to fight with a bonded sibling, if they are. Things only we know.~

~Mmhm, I'll help you with that,~ he agreed with emphasis on remembering their sweetest memories in battle. Sunstreaker craned his neck and pressed a kiss to his brother's mouth plates. ~Imagine if ours are bonded siblings. Do we even have more than one?~ He sounded genuinely curious, moving his optics to follow Shimmerfire once more.

~She might know. Ratchet might be able to tell,~ Sideswipe thought hesitantly. ~We could ask.~

~If it's even possible to tell, especially so early on.~ Sunstreaker was unsure. Once the Seekerlings were born, they could probably tell due to similarities, but before, he wasn't certain. Not with his lack of expertise, anyway. ~Let's ask 'Fire when she's done having her fun.~

~Sounds good. Even if she can't tell yet, she might later. I caught something about a carrier-bond in one of our merges,~ Sideswipe snuggled closer, watching her breathtaking maneuvers. ~She's got pretty good moves given she's never seen real combat or training.~

~It's probably natural for her,~ the golden mech pointed out. It was a fantastic sight to see Shimmerfire flying, as she should be, and especially since as she got heavier with her pregnancy, it would be more difficult to fly. ~That, and she might be showing off to her mates.~

~I'm sure she is,~ Sideswipe grinned and nuzzled his brother's neck. ~We do on the sparing field when she's watching.~

Sunstreaker switched their positions so that he could pull Sideswipe to have his brother lean against him, as well as have free reign to litter kisses on his lips. ~I'm not complaining.~

A sonic boom echoed across the island, though from high enough to be within regulations, another loop at her top speed, and she swung around to transform and land neatly on her pede-enclosed thrusters next to them.

"Mmm, I like where your processors are headed," she purred, ghosting her fingers down both their backs as her wings came forward in a shielding claim.

Sunstreaker chuckled, his baritone ending in a light, playful growl as he leaned forward to nip his brother's audio receptor. "I think we're already overheated from watching you show off your skills in the sky," he replied, smirking suggestively.

"Turnabout's fair play," she smirked right back, the trilling rumble of vocalizer and turbines mixed together in a message of 'mine' and 'want to 'face' as clearly as groping them. "Unless you want to play out here?" She urged them to head for their shared quarters.

The golden mech turned, dragging Sideswipe with him so that they ended up sandwiched together with his brother in the middle. "We could always make things more interesting and change up the scene a little bit." One of his eyebrow ridges arched in question.

~What do you have in mind?~ Sideswipe was genuinely interested, and nervous for good reason.

"You know I'm always up for it," she grinned down at the pair.

~Patience, brother. Don't you want a little excitement?~ Sunstreaker kissed his brother's lips reassuringly, mischievous optics turning towards Shimmerfire. "There's always a little pleasure in doing something you know you're not supposed to. Aren't we supposed to be more conscious of privacy with so many humans around? Let's play somewhere open."

They both felt the shiver of her wings. "They do have far too much say in how things are run," she grinned, her ruby optics glittering in excitement.

Sideswipe rumbled his own excitement. "Where?"

"Mmm," he grated his agreement, "Prime wants to make the humans feel more comfortable about us being here." He shook his head a bit, but pushed Sideswipe up further against Shimmerfire's chassis. "The closer to the activity center of the base, the more of a chance we have at getting caught. Therefore, it's more fun. How close do you think you can get without getting nervous?" His optics flashed, almost as if to say, 'if you will at all.'

They felt Shimmerfire's wings flutter a bit more as she ran her hands down Sideswipe's chassis, her excitement flaring hot and fast. "Under Prime's office window?" she suggested throatily.

Sunstreaker's approval was apparent, anticipation shining brightly in his optics. "Yes, yes, yes," he mused, standing without a second thought, unable to contain himself even when he was shifting on his pedes and molested his brother while he greedily kissed Shimmerfire.

"You two are crazy," Sideswipe laughed even as he trembled in eagerness. "Think we can claim temporary insanity?"

"Haven't we already done that? Wait, maybe that was just me," Sunstreaker smirked as he pulled away from Shimmerfire's mouth and practically dragged the two of them behind him. Sadly enough, he knew where Optimus' office was all too well.

The eagerness of his lovers at the idea of 'facing right where the Prime could hear them made it all the sweeter. And right now Prowl would be distracted by Jazz and their new socket enough not to care if the Unmaker showed up.

As soon as they were near the building wall Sunstreaker shoved his brother to the ground. He was trying to be more gentle with Shimmerfire, out of the subconscious habit he was getting into now that she was carrying. "I really think it's Sides' turn to be tortured," he droned, heavily enjoying the fact that he wasn't even masking his pitch despite how they were directly under the Prime's office window. "He can get loud if you get him just right." Both of his optic ridges rose suggestively to his femme lover.

"Yes, he can," she grinned, catching the silver warrior's helm and tipping it back to kiss him. Without even thinking Sideswipe arched his chest up and spread his legs against his brother's weight and her demanding contact.

Sunstreaker immediately pressed his body against his brother's, slipping professional hands against every spot that he knew would make Sideswipe wriggle, squirm and whimper; begging for him, and now begging for Shimmerfire as well. He pulled one of the silver mech's hands to his mouth, slipping his glossa against the barely visible slit that sheathed his blade sets within.

Following his lead at the way Sideswipe nearly lost control of his vocalizer at the simple touch, Shimmerfire claimed one of his hands from Sunstreaker to tease the blade slits with her glossa while her free hand roamed his angular chest. A claw teased a circle around his headlight and Sideswipe shuddered uncontrollably.

~Frag it bro, one of you spike me now.~

Sunstreaker chuckled in amusement, shifting a hand to rub against the plating covering his brother's heating interface panel. ~You can't wait, can you?~ he teased, sucking along the silver mech's knuckles while his own interface panel whisked open.

"What would you prefer, 'Fire, his valve or his mouth?" he all but purred, pulling the hand coaxing against his brother's interface panel to stroke heavy circles around his thighs.

"Valve," she rumbled, her wings vibrating in excitement at the sight of Sideswipe's panel sliding open and his spike pressuring rapidly. "He's so tight, so hot."

"Always is," he promised. Sunstreaker took his time, much to Sideswipe's frustration, and finally switched positions with the Seeker. He knelt by his brother's head, sliding his glossa along those sensitive helm extensions, both hands roaming down across the silver mech's chassis.

She wasn't nearly as patient, or teasing, and hilted herself with a single thrust, her hands tight on his hips to hold him against the power of her frame.

Through their bond, Sunstreaker felt what his brother couldn't articulate beyond the whimpering mews. The raw pleasure of being dominated, taken and used, by someone he liked, even trusted.

Sunstreaker wasn't ready to hide those loud noises from the world just yet, despite how his spike was dreading the neglect. He coaxed further moans from his brother, showing him the images of Shimmerfire's domination through his perspective. The golden mech pinned Sideswipe's hands close to his helm, rubbing his thumbs into those sensitive blade slits. ~You like that?~

~Frag yes! And you know it,~ he howled across their bond, his body willingly surrendered to his lovers and the strength they represented.

Sunstreaker finally gave up, those noises his brother was making completely clouding his desire for making their little exploits all the more exciting, and shifting his position to straddle Sideswipe's chest. The tip of his spike nudged the silver warrior's lips, nearly trembling itself. ~You can take it.~ Oh, he knew that for a fact.

Take it, love it, relish it, gain almost as much pleasure from sucking his brother off as he did the other way around.

With her next thrust Shimmerfire leaned forward and began to kiss and nibble Sunstreaker's neck, watching with hungry optics as his golden spike disappeared between silver lips.

"So fragging hot," she murmured against Sunstreaker's audio.

Sunstreaker's moans echoed, his body beginning to reach overheating points where his internal fans began to work overtime. He lifted a hand to rest against Shimmerfire's neck as she attacked his, optics centered on the sight of his brother taking his spike. "Mmm ... he's good at that."

He felt her nod, her voice stolen by the moans of pleasure Sideswipe's valve was drawing from her. It was the way his brother started to hum and suck hard, trying to get him off before overload swept him away.

Sunstreaker grunted loudly, strings of his own groans following as his hips began to rock his spike into the attention it was receiving. His optics off-lined, vocal processor hoarse as he leaned his head back on the Seeker's shoulder. "Primus..."

"My mates," Shimmerfire whispered hotly, loosening one hand from Sideswipe's hip to caress Sunstreaker's chassis, paying special attention to his headlights and teams.

The golden mech shuddered lightly from the constant touches, the open bond with his brother giving him exactly every sensation he felt as Shimmerfire worked his valve. He gritted his denta, loosely grasping his brother's helm and craning his neck enough to find the Seeker's lips with his own.

She brought her hand up to support and hold him there as she lost control. Her turbines revved fast and loud, the trusts as she poured transfluid into Sideswipe's valve hard and jerking, matching the gasping, grunting cries of her overload into Sunstreaker's mouth.

The hot splash of transfluid and feel of his lover loose control sent Sideswipe over the edge himself, his valve clenching and fluttering around her spike as he moaned and shuddered, trying to taste his brother's transfluid.

Sunstreaker was overwhelmed not but mere seconds after his brother, frame trembling slightly as his transfluid filled Sideswipe's mouth. He took a few kliks to gather himself, pulling carefully out of his brother's mouth and suspiciously eying the window they were settled under.

It hadn't opened, but he only had a glance before Shimmerfire's hands turned controlling and he found himself on his back with her mouth on his and her spike against his valve.

Sunstreaker's optics flickered momentarily, feeling his spark pulse dangerously in its chamber. The only mech he'd ever let spike him was Sideswipe, though it was on rare occasions, and even though he usually enjoyed it, he always acted stubbornly grumpy afterward.

He couldn't deny that her forcefulness turned him on, though. Usually that was how Sideswipe got him; he usually got the golden mech so worked up that he had him practically begging for it.

Groaning lightly against her lips, his engine vibrated heavily against her chassis.

~Oh Pits that is smoking hot,~ Sideswipe gasped across their bond as he watched his brother take their lover's spike and the domination she was exuding. ~Can't remember the last time we had anyone we could both dom and sub to.~

~You shouldn't be able to, unless I was a little too happy on the high grade,~ Sunstreaker nearly growled, tossing his head back until his helm hit the grass beneath them when she took her spike and began to make deeper groans than normal. His optics flared. ~Do something to me!~ he demanded, his mood altering thanks to Shimmerfire's control.

Sideswipe grinned and moved to his brother's head, holding it tipped back and pressed the tip of his spike against those golden lips. ~Suck me off, bro,~ he rumbled demandingly. ~And maybe I'll spike you next.~

His optics dimmed and Sunstreaker wasted no time in taking his brother's silver spike completely into his mouth, forcing his throat cables to relax until it was hilted. He sucked hard, glossa swirling as he finally shifted his own hips to meet Shimmerfire's thrusts. ~You'd like that, wouldn't you?~ he mused, groaning afterward.

~You know fraggin well I would,~ Sideswipe groaned, relishing both in the feeling of his brother sucking his spike and the pleasure Sunstreaker felt doing it and having his valve pounded into hard and fast. He moaned and shuddered when Shimmerfire reached forward and grabbed the back of his helm, pulling him in for a kiss over Sunstreaker's chassis. Even without a link, her wings and sounds made it clear she was enjoying dominating them both.

The golden mech's fingers dug deep marks into the grass as the pleasure loop between him and his brother circled faster, as fast as her pace drove into his valve. The noises that had been muffled against Sideswipe's spike only ended with deep vibrations stimulating it more. ~Sides...~

"Oh Primus," Sideswipe gasped out when the kiss with Shimmerfire broke, ragged moans being drawn from his vocalizer by the intense pleasure. With his face tipped up, he saw Prime leaning out his office window, arms crossed on the sill, looking down on them.

The big mech didn't say anything though.

Sunstreaker's optics blinked before leveling, glossa pausing in its movements as his denta slightly squeezed against the sensitive silver spike in his mouth. It felt a little surreal to see their leader staring down at them, seemingly devoid of predictable emotion. ~Is that who I think it is?~ he questioned, wondering if it was simply the rush of the moment that was making him see things.

~It is, and he's apparently enjoying the show,~ Sideswipe rocked his hips to get Sunstreaker to go back to work while he pulled Shimmerfire forward for another kiss.

~Oh, sure he would,~ Sunstreaker growled, creating another suction that had his brother crying out against their Seeker's lips. The golden mech suddenly arched his back, pede grinding into the ground as he felt his circuitry and wires coil as his body prepared for an overload he knew was coming.

Shimmerfire growled against Sideswipe's mouth and thrust hard once more before overload swept through her, tightening her grip on the back of Sideswipe's helm and Sunstreaker's hip. Her next thrusts were sharp and jerking, each one delivering a burst of hot transfluid into the golden warrior's valve.

Sunstreaker knew that he couldn't last. He still wanted to taste his brother, though, so his hasty attention to Sideswipe's spike was increased, sucking hard enough that his cheek plates slightly caved.

With Sunstreaker's valve overload pouring into him and the mouth working his spike, Sideswipe couldn't last long and didn't try. As he moaned, his overload sweeping through him and pumping transfluid into his brother's mouth, he watched transfluid spurted from the erect golden spike between himself and Shimmerfire. Watched as the pearlescent liquid fall in an arch to coating the golden frame thanks to the gravity of the planet.

"Oh wow," Sideswipe said through the heavy, ragged efforts of his vents and fans to cool him.

"As much of a theme this has become lately, please take yourselves to your quarters before round three," Prime spoke evenly but firmly with just a hint of amusement in his voice. "Be thankful that Ratchet warned me what carrying does to a mech or you'd be in more trouble."

When Sunstreaker finally gathered himself, he could feel his cheek plates heating from slight embarrassment at the light scolding. He had a feeling that the 'but Shimmerfire's carrying!' excuse would only work for no long, so he guessed that trump card would have to be used in more dire situations. "Sir," he acknowledged, though he couldn't resist a slight smirk at Shimmerfire as she pulled her spike out of his clenching valve.

"Yes, Sir," Sideswipe quipped, quickly retracting his spike and closing his panel.

"Yes, Sir," Shimmerfire added as she did the same, though she sounded the least repentant of the lot. "Do you know when Jazz will return?"

"In an orn or two, I expect," he answered easily. "His last communiqué was quite positive. Get going," he said as he withdrew. "I want the sparklings healthy."

Sunstreaker finally stood after the others did, the soft hiss of his hydraulics indicating the shutting of his own interface panel. His processor felt pleasantly lighter than normal. "Mhm, yes, all six of them," the golden mech mused, though he was sure their Prime was already aware of the number.

"All six, but especially yours," Shimmerfire trilled affectionately, caressing his helm vents as they walked towards their quarters.

"You can tell?" Sideswipe perked up sharply as he was drawn against her other side.

"Yes," she looked a little surprised at the question. "I can show you which chamber holds who's sparkling protoform."

Both of Sunstreaker's optic ridges rose. "Where's ours?" he questioned, his voice curious as he reached a hand out to stroke against her abdominal plating. It was instinctive - an action he had a feeling he'd be doing for the next three-quarters of a vorn.

She smiled and twisted to face both of them, her wings sweeping upwards to clear their heads before settling back into their natural position. She caught Sunstreaker's hand and showed him, by touch, each of the six chambers that already took up the lower two thirds of her large chassis. "The lower three, the first sparked, are by you," she included them both in the statement as she guided curious fingers over the three chambers; right, center, left.

"These are by Tread Bolt," she indicated with her own fingers the right and center chamber in the upper set. "And this one is by Jazz," her fingers ghosted over the upper left chamber.

The golden warrior's optics widened in surprise. He had been expecting one, maybe two, but three? He was going to drown in his the amount of pure joy Sideswipe was sending through their bond, amid several other emotions and desires he could easily place.

"Three are ours," Sunstreaker confirmed out loud, and after allowing her to guide his fingers to find which of the other sparklings belonged to whom, drifted them towards theirs again. "Primus ... we're going to have to come up with names for three?"

"Yes, three are yours," she smiled and leaned down to kiss Sideswipe, who'd physically frozen in his inability to deal with the news with anything more than joy. "They'll have their own ideas for names by the time they're born," she assured Sunstreaker before kissing him as well.

The golden mech's vocal processor let out gargled static when she pressed her lips against his, and his optics were resetting far too many times to be normal. Finally, he huffed his approval, slipping his pede onto the cement walkways they were passing over so that he could grab a hold of his brother's wrist and tug him forward. "As long as one of them doesn't decide to call themselves 'Glitterfairy' or something."

Shimmerfire and Sideswipe both snickered at that.

"I'll do my best to keep their names appropriate," she almost giggled. "But I wouldn't worry about that one at least. It's a terribly un-Seeker-like name."

"It's a terrible name all around," Sunstreaker pointed out, trying not to allow his processor to provide him with any more. One was quite enough. "Anyway, we don't want to disappoint our Prime, do we?" he smirked mischievously, optic ridges rising as he skidded backwards while pulling his brother's arms around him. "You might wanna hurry before I fall out of that mood."

"You only have two moods, 'face and fight," Sideswipe teased. "Easy enough either way you go."

"Funny," Sunstreaker droned, nipping at his brother's neck cables as they neared Shimmerfire's quarters. "I'll remember that when you wanna cling to me at night when we're about to recharge." He smirked in Shimmerfire's direction.

"I think it's sexy," she rumbled, speeding her steps in anticipation of a long session of lovemaking with the pair, and maybe get to watch them fawn over the gestation chambers again.


Shimmerfire wasn't sure what made her feel better; the new sparks around hers, the Seekerling frames being built in her body, being completely sated and fuelled or the warrior snuggled against each side of her chassis. Even their weight on her wings felt good, a testament to how much her core programming trusted the pair to defend her and her clutch.

Sunstreaker's hands had been alternating their subconscious duties. He was either rubbing a hand over any spot on the Seeker he could reach, or he was drifting the servo across her abdominal plating. Sometimes they brushed the higher chambers, but more often his fingers lingered to leave touches over the three lower ones where he knew their sparklings to be growing.

Eventually, though, did the golden frontliner reach out and grab at a silver hand, urging it to join his at rest across her three lower chambers, fingers entwined. "Will they recognize who we are, do you think?" he wondered aloud. "Will they know we're their co-creators?" He hadn't the slightest clue when it came to sparklings, and he was still wrapping his processor around the information Ratchet had forwarded to them.

"They should," she smiled down at him, one hand caressing each twin. "You share a spark resonance with them, just as they do with me. Within a metacycle they'll be coherent enough to pick up bits and pieces of my thoughts that pertain to them. I knew what my co-creator looked like from my carrier long before I was born."

A light sound of approval came from Sunstreaker's vocalizer. "Then they should be well accustomed to Sideswipe and I when the carrying period is over." That made it a bit easier to think about. If they were basing their thought processes off of what they gained from Shimmerfire, then he was sure they were going to be positive images.

"Very much," she crooned a soft trill and stroked his head vent. "When they're older, you can connect with them a little more directly with a hardline link to me. Not till at least the half-vorn mark though. They have to be fairly well developed to comprehend much more than basic sensations. Like right now, I think they know I'm content, and I can tell that they are well-fed and content."

A grin formed on his mouth plates as he shifted ever so slightly so that he was comfortably resting his head against her shoulder. "You're going to have to let either me or glitch head know when they're not well-fed so we can do something about it," he pointed out. "Might as well get into the habit now, at least."

"As if you're going to be in on this more than me," Sideswipe shot back, though his new position, curled on his side with head and arm draped on Shimmerfire's lower chassis over the sparklings he was co-creator of, of did much to take the bite out of his words.

"Don't worry, you'll know if they need anything," she crooned, thrilled beyond measure at how well Sunstreaker was taking to the role she'd hoped for.

Sunstreaker scoffed in mock annoyance, flicking a finger against his brother's helm. "Shut your trap, bro. Fine, I'll let you do all the co-mother activities," he teased, smirking again and tilting his chin to press a possessive kiss on Shimmerfire's lips. "I'll do all the rest, then."

Shimmerfire laughed, a deep, booming sound of joyful amusement at her twin's antics and affectionately stroked both their helms. "As if I'm going to give up anything from either of you."

"You heard the Seeker," Sideswipe snickered. "Carrier rules the roost, you know."

"Sure, but who's to say what happens to silver twins while the Carrier is pleasantly recharging?" Sunstreaker droned sarcastically, his optics blazing. "Unspoken things, that's what. Unspoken, usually torturous things." He blinked his optics with mock innocence, chirring at her laughter.

"As if you can take me when I don't want to be taken," Sideswipe shot back with some actual heat behind it, his optics glowing eagerly.

Shimmerfire grinned, stroked them and generally made no secret of her approval of their antics and fire.

"Please, brother, you'd be mine within mere kliks," he assured, obviously confident. He traced a finger against Shimmerfire's chest plates absently. "The only reason I bottomed for you today was because 'Fire got me in the mood." A hot tuft of air released from his olfactory sensor vents.

"And I let you spike me most times because I like it that way," Sideswipe countered. "Every time I want your valve, I get it."

Sunstreaker visibly bristled, lifting himself lightly and nudging an accusing finger in his brother's direction. "Are you asking for a rough pounding until you fall into a forced recharge? Because it sure does sound like it to me," he all but growled. "Damn masochist. Primus. That's what you think happens, but in reality, I'm just trying not to hurt your feelings." A gruff nod followed his statement.

Neither watching mech missed the bright flare of Sideswipe's optics or the rev of his powerful engine. Neither brother missed the whir of Shimmerfire's heal-turbines at their banter, or the prospect of watching them struggle for interfacing dominance.

An optic ridge rose in question, his own engine growling and raising in frequency as his brother challenged him. There was a faint curl of tension in Sideswipe's lower frame, then he launched himself across his lover at his brother.

Sunstreaker flipped backwards off the berth, tumbling a few times with his brother nearly completely latched onto him in all aspects until their rolling ceased. His hands immediately went for Sideswipe's throat cables, squeezing and only releasing one hand when he decided to make a chance at grabbing the silver mech's nearest wrist.

Sideswipe's dentals were suddenly on his throat cables as he caught his brother's free wrist.

Despite the struggle, both brothers were well aware of the rumbling, trilling approval their mate was giving in encouragement.

Sunstreaker growled to match her thrilled noises, his vocal processor letting out garbled static from the pressure so close to its main processing unit. His engine roared, body pressing down against his brother's bulk as he struggled. The strength of his force on those throat cables tightened, optics blazing blue heat.

Sideswipe responded with a growl and rumble of his own engine, twisting until he rolled them over so he was on top.

The golden mech, despite his other struggles, allowed the movement just as he sent a blinding image of Sideswipe riding his spike in that position through their still open bond. The scowl didn't leave his mouth plates, however, especially when he jerked his hands free to grip around his brother's shoulders in an almost denting force.

In retaliation, Sideswipe pushed a very vivid image of his spike pushing between golden lip components, ruining the scowl's affect.

Sunstreaker verbally groaned, the noise disoriented. He shoved both of them into a momentum, rolling until they clashed into the far wall, where he pinned Sideswipe the best he could with the weight of his body and forced his mouth on his.

Even there, it was debatable who was kissing who as their glossa dueled for dominance. Sideswipe pressed the only advantage he had, memories of shared pleasure where he dominated his brother. Not just the images, but the heat, the pleasure, the exquisite feeling of merging sparks when Sunstreaker was the one pinned down.

Sunstreaker's assault paused only for a moment, his processor swimming in the memories, before he ripped their mouths apart and went for Sideswipe's neck cables again. Golden hands found silver wrist, exerting force on them beside his brother's helm. "Quit cheating," he growled, engine thrumming.

"You started it," Sideswipe countered. He gave a twisting push, using the wall as leverage, to put Sunstreaker on his back again. This time he grabbed golden shoulders and shifted his weight to rub their open interface arrays together.

"So?" he hissed, knees coming up to pin against his brother's sides. A groan forced its way through his vocals, his body heating against his will, but as stubborn as he was, he jerked his head forward until their helms butted together roughly.

Sideswipe retaliated by pressing his helm down until he could capture Sunstreaker's mouth. He used that distraction to wiggle his way down to press their chassis against each other again. Lining their spikes up to rub against each other was pure instinct at that point.

The moaning and rumbling of turbines as Shimmerfire slowly stroked her spike did nothing to calm the pair down. Even without looking or thinking about it, both brothers knew this was turning her on something fierce.

Sunstreaker's optics flicked with pleasure until he forced them offline, feeling through memorization rather than sight. A stray hand found Sideswipe's wrist once more, and he none to gently grazed his fingers across his blade slits. A coarse moan ripped through him, dually pleased with Shimmerfire's arousal from across the room and Sideswipe's aggression.

One of Sideswipe's hands came up to tease the rim of a headlight, though his own frame trembled slightly at the attention to his wrist and all the sensors there.

~Admit it, you want my spike,~ Sideswipe pressed against him across their bond.

~You want mine,~ Sunstreaker retorted, bucking his hips forward in a gruff contact of their interface panels. He brought his brother's hand to his mouth and bit down on his thumb with his denta, only lessening his grip when he felt the slightest taste of energon lure his glossa to lap up the escaping beads of sweet liquid.

Sideswipe shuddered in the pain-pleasure, his vents wide open and fans working hard. Oh, it was true, he did want his brother's spike, but he wanted to win this contest in front of Shimmerfire more. With a twisting, shifting push he brought his hips back and down, pressing his spike into his brother's valve without warning.

The golden mech growled out in pleasured frustration, his body shifting in an attempt to maneuver the silver frontliner to pull out of him. He thrashed, a fist just barely missing contact with Sideswipe's helm. ~You little...!~

~Hush,~ Sideswipe smirked and grabbed the offending arm, slamming it down as he thrust in hard and deep, taking advantage of the arousal of the previous joors that left his brother's valve slick and ready. ~You love it,~ he pulled out just a bit before thrusting in harder.

The golden warrior howled, denta gritting as he bit back moans, refusing to give his brother the satisfaction. His optics blazing once more, his defiance ended in two cables erecting from his body, one looping around silver thigh plating while the other plunged in and violated Sideswipe's valve. ~Brat!~

~Your brat,~ Sideswipe moaned, unashamed of his pleasure at the cable. His valve squeezed down around it as he thrust his spike in deep and hard. No matter how much his golden twin might bristle and object, there was no denying the mutual pleasure through their bond. ~You're mine.~

Sunstreaker finally groaned, vision blurring until they forcibly off-lined to leave his focused energy on the cables he was plunging in and out of Sideswipe's valve. His vocal processor gave a unique pitch, resulting in another, more defiant growl. There was a flurry of insults he was sure his brother could hear through his garbled static, but the pleasure was great, and he was losing himself to it. ~Harder!~

Without hesitation Sideswipe complied, putting everything he had into the strength of his thrusts, scrapping golden back plates against the metal floor. In the background, jet engines and turbines rumbled in heating arousal, echoed by Shimmerfire's shaking growls of her own pleasure.

~So tight,~ Sideswipe moaned, pressing harder against his brother's mouth. ~You feel so fragin good.~

Sunstreaker found his own dominance in fighting back his brother's glossa, nipping and biting at the mouth plates pressed against his own. He was in that mood, the one drifting between his lust for interfacing and his lust for battle. He bucked, crushing against the silver mech's thrusts.

It was a mood Sideswipe responded to quickly, easily, as he bit back and clawed at golden armor. They were both oblivious to the hot arousal they were causing across the room, and only barely registered when Shimmerfire roared her overload.

A golden arm rose, curving around his brother's back and squeezing them together chassis to chassis. He felt that they couldn't get close enough somehow, that something was blocking them. Further frustrated, he pushed the cables deeper within his brother's valve.

Through the haze of ecstasy and lust, he felt his brother's offer to spark-share, if he wanted it.

Sunstreaker's processor lingered on the thought, but in reality, his chest plates whisked open without hesitation. His spark pulsed, bathing his brother with its brilliant sun colored light even as his golden armor reflected the brilliant sunlight from inside his brother's chest. Without hesitation they crushed their chests together, pressing the sparks against one another before they'd sent more than a couple tendrils out in welcome to it's other half.

The golden mech made a noise that was unknown to the emotion involved, but if one had to guess, it was satisfaction to near completion. He opened himself to Sideswipe, allowing their sparks to reach for each other with the same act of desire to become whole. ~Wanna feel you,~ he demanded, his spike, in full length, pinned uncomfortably between their bodies. ~My turn, my turn.~

~Not till I overload,~ Sideswipe countered and began to thrust again, though he did his best to shift so he wasn't putting as much pressure on spike pinned between them.

~You already did that today!~ he hissed, but his body was sending an refreshing sense of pleasure through him. Soon he was subconsciously muttering unmentionable things in Cybertronian, his legs coming up and wrapping around the silver mech's waist.

The pleasure of the spark merge, of feeling complete, broke over them in waves from their spark outwards, crawling along circuits and through energon lines. It never lasted long at this point, never, ever long enough.

Sideswipe growled, grunted, and then keened as he couldn't hold himself back and longer between the pleasure of his spike, that of his valve and the ecstasy beyond all else of being complete once more.

Sunstreaker cried out a ragged amount of static when the feeling of a climbing overload sent him over the edge, right in time to feel his brother's transfluid filling his valve. He huskily sucked in cool air through his vents before swiftly retracting both cables and urging his brother out of him. ~Ride me,~ he demanded, keeping their chassis plates firmly pinned so that the merge would last through his own spike overload as well.

A shudder of excitement passed through the silver twin as he squirmed and shifted to sink fully onto his brother's spike. The rush of duel pleasure hit them both, then swept into the other. ~Oh yeah,~ Sideswipe moaned heatedly. ~Take me hard, bro.~

The golden twin settled into a seated position so that their chests wouldn't be strained as their sparks touched each other intimately and affectionately. A low rumbling churr followed a deep moan as he bucked his hips upward, slamming up into the silver warrior without any hesitation. ~Feel so good,~ he mumbled, claiming those lips again with his own.

~Nothing better,~ Sideswipe groaned and kiss back heatedly, his valve eagerly clenching around the thick golden spike invading it so deeply.

Every time he jerked his hips upwards, the bulk of his body momentarily came off the ground. Sunstreaker clutched his brother as close to himself as he could, letting the feeling of enveloping him and being enveloped turn into a double edged sword of extreme pleasure, one that he could never find himself getting tired of. ~Love you.~ He gritted his denta as the closeness made it far quicker to ride over the edge of another overload, something that made him motivate his power rather than speed. ~Love you so much.~

~Yes!~ was all Sideswipe could manage in reply, but his emotions, his love, adoration, loyalty ... everything he felt for his brother ... flowed freely between them more powerfully than any words could.

Sunstreaker's awareness greedily blanketed that of his brother, blinding him momentarily to the outside world to focus on solely his presence as their bodies rocked in unison. He teetered over the edge of his pleasure, reaching his climax and coating the silver warrior's valve with his transfluid, only dimly aware that his other half happily crashed over the precipice with him.


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